Merge commit 'origin/master' into fedora/master

6 files changed, 29 insertions, 30 deletions

diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure
index 253e9c57ff..199457a3ac 100644
--- a/sysdeps/unix/sysv/linux/configure
+++ b/sysdeps/unix/sysv/linux/configure
@@ -1,17 +1,6 @@
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux.
 
-# The Linux kernel headers can be found in
-#   /lib/modules/$(uname -r)/build/include
-# Check whether this directory is available.
-if test -z "$sysheaders" &&
-   test "x$cross_compiling" = xno &&
-   test -d /lib/modules/`uname -r`/build/include; then
-  sysheaders="/lib/modules/`uname -r`/build/include"
-  ccheaders=`$CC -print-file-name=include`
-      SYSINCLUDES="-I $sysheaders"
-fi
-
 # Don't bother trying to generate any glue code to be compatible with the
 # existing system library, because we are the only system library.
 inhibit_glue=yes
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in
index 5330e98c2d..8f00407a8b 100644
--- a/sysdeps/unix/sysv/linux/configure.in
+++ b/sysdeps/unix/sysv/linux/configure.in
@@ -1,19 +1,6 @@
 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
 # Local configure fragment for sysdeps/unix/sysv/linux.
 
-# The Linux kernel headers can be found in
-#   /lib/modules/$(uname -r)/build/include
-# Check whether this directory is available.
-if test -z "$sysheaders" &&
-   test "x$cross_compiling" = xno &&
-   test -d /lib/modules/`uname -r`/build/include; then
-  sysheaders="/lib/modules/`uname -r`/build/include"
-  ccheaders=`$CC -print-file-name=include`
-  dnl We don't have to use -nostdinc.  We just want one more directory
-  dnl to be used.
-  SYSINCLUDES="-I $sysheaders"
-fi
-
 # Don't bother trying to generate any glue code to be compatible with the
 # existing system library, because we are the only system library.
 inhibit_glue=yes
diff --git a/sysdeps/unix/sysv/linux/eventfd.c b/sysdeps/unix/sysv/linux/eventfd.c
index 4cd557983e..7f69ecdb8c 100644
--- a/sysdeps/unix/sysv/linux/eventfd.c
+++ b/sysdeps/unix/sysv/linux/eventfd.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,14 +19,21 @@
 #include <errno.h>
 #include <sys/eventfd.h>
 #include <sysdep.h>
+#include <kernel-features.h>
 
 
 int
 eventfd (int count, int flags)
 {
 #ifdef __NR_eventfd2
-  return INLINE_SYSCALL (eventfd2, 2, count, flags);
-#else
+  int res = INLINE_SYSCALL (eventfd2, 2, count, flags);
+# ifndef __ASSUME_EVENTFD2
+  if (res != -1 || errno != ENOSYS)
+# endif
+    return res;
+#endif
+
+#ifndef __ASSUME_EVENTFD2
   /* The old system call has no flag parameter which is bad.  So we have
      to wait until we have to support to pass additional values to the
      kernel (sys_indirect) before implementing setting flags like
@@ -43,5 +50,7 @@ eventfd (int count, int flags)
   __set_errno (ENOSYS);
   return -1;
 # endif
+#elif !defined __NR_eventfd2
+# error "__ASSUME_EVENTFD2 defined but not __NR_eventfd2"
 #endif
 }
diff --git a/sysdeps/unix/sysv/linux/i386/sysconf.c b/sysdeps/unix/sysv/linux/i386/sysconf.c
index efe1a639cd..ff3cf9f7c7 100644
--- a/sysdeps/unix/sysv/linux/i386/sysconf.c
+++ b/sysdeps/unix/sysv/linux/i386/sysconf.c
@@ -138,6 +138,9 @@ static const struct intel_02_cache_info
     { 0xe3, 16, 64, M(_SC_LEVEL3_CACHE_SIZE),  2097152 },
     { 0xe3, 16, 64, M(_SC_LEVEL3_CACHE_SIZE),  4194304 },
     { 0xe4, 16, 64, M(_SC_LEVEL3_CACHE_SIZE),  8388608 },
+    { 0xea, 24, 64, M(_SC_LEVEL3_CACHE_SIZE), 12582912 },
+    { 0xeb, 24, 64, M(_SC_LEVEL3_CACHE_SIZE), 18874368 },
+    { 0xec, 24, 64, M(_SC_LEVEL3_CACHE_SIZE), 25165824 },
   };
 #define nintel_02_known (sizeof (intel_02_known) / sizeof (intel_02_known[0]))
 
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 4562515790..ff065effb5 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -516,6 +516,8 @@
 # define __ASSUME_SOCK_CLOEXEC	1
 # define __ASSUME_IN_NONBLOCK	1
 # define __ASSUME_PIPE2		1
+# define __ASSUME_EVENTFD2	1
+# define __ASSUME_SIGNALFD4	1
 #endif
 
 /* Support for the accept4 syscall was added in 2.6.28.  */
diff --git a/sysdeps/unix/sysv/linux/signalfd.c b/sysdeps/unix/sysv/linux/signalfd.c
index 9898f29231..c2d974a45d 100644
--- a/sysdeps/unix/sysv/linux/signalfd.c
+++ b/sysdeps/unix/sysv/linux/signalfd.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,14 +20,21 @@
 #include <signal.h>
 #include <sys/signalfd.h>
 #include <sysdep.h>
+#include <kernel-features.h>
 
 
 int
 signalfd (int fd, const sigset_t *mask, int flags)
 {
 #ifdef __NR_signalfd4
-  return INLINE_SYSCALL (signalfd4, 4, fd, mask, _NSIG / 8, flags);
-#else
+  int res = INLINE_SYSCALL (signalfd4, 4, fd, mask, _NSIG / 8, flags);
+# ifndef __ASSUME_SIGNALFD4
+  if (res != -1 || errno != ENOSYS)
+# endif
+    return res;
+#endif
+
+#ifndef __ASSUME_SIGNALFD4
   /* The old system call has no flag parameter which is bad.  So we have
      to wait until we have to support to pass additional values to the
      kernel (sys_indirect) before implementing setting flags like
@@ -44,5 +51,7 @@ signalfd (int fd, const sigset_t *mask, int flags)
   __set_errno (ENOSYS);
   return -1;
 # endif
+#elif !defined __NR_signalfd4
+# error "__ASSUME_SIGNALFD4 defined but not __NR_signalfd4"
 #endif
 }